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C. E. SHADALL.

VENTILATIN'G AND FLUSHING APPARATUS.

APPLICATION FILED JULY 23. 1917.

' Patented May 20, 1919.

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c. E. sHAnALL, Y VENTILATING AND FLUSHING APPARATUS.

APPLICATION FILED IULYZS. 191?.

Patented May 2o, 1919.

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VENTILATING AND FLUSHING APPARATUS.

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CHARLES E. SHADALL, 0F MILWAUKEE, WISCONSIN, ASSIGNOR TO SI-IAIDALL MANUFAC- TURING COMPANY, OF WAUWATOSA, WISCONSIN, A CORPORATION `0F WISCONSIN.

VENTILATING AND FLUSHING APPARATUS.

Application filed July 23, 1917.

To all whom t may concern:

Be it known that I, CHARLES E. SHADALL, a citizen of the United States, residing at Milwaukee, in the county of Milwaukee and State of `Wisconsin, have invented certain new and useful Improvements in Ventilating and Flushing Apparatus, of which the following is a specification, reference being had to the accompanying drawing, forming a. part thereof.

The main objects of the invention are to utilize the same water for both Ventilating and flushing a toilet fixture ;v to automatically repeat the discharge from the tank and the flushing of the fixture as long as the water supply to the tank remains open; to keep the passages through Iwhich the fixture is ventilated free from water and open when the Ventilating device is working; to make the operation of the apparatus automatic without care or attention on the part of users; and generally to improve the construction and operation of apparatus of this class.

lt consists in the construction, arrangement and combination'of parts as hereinafter particularly described and pointed out in the claims.

In the accompanying drawing like charc the appara-tus broken away and shown in section; Fig. 3 is a horizontal Section on the broken line 3 3, Fig. 1, showing the floats and their connections with the flush valve; Fig. 4 is a vertical section on the line 4-4, Fig. 2, of the Ventilating device forming a partof the apparatus; and Figa@ is a view similar to Fig'. 1 showing movable parts of the apparatus indifferent positions.

Referring to Figs'. 1 .and 2, 1 designates a flush tank of the usual 01"' a commonform -and oonstnuction, provided with adischarge connection and flush pipe coupling 2, secured in the bottom of the tank andy coin',- prising a fitting 3, which is provided ywith a valve seat 4, and formed with an upstanding notched rim 5, extending above the seat,

Specification of Letters Patent.

Patented May 20, 1919.

Serial No. 182,157.

Extending upwardly from the fitting 3 are two parallel guides 6 and 7, which are attached at their upper ends to and support the ventilator case 8 in the upper part of the tank.

A vertically movable flush valve 9, normally rests on the seat 4, closing the discharge opening in the lower part of the tank into thel flush connection 2. The Vflush valve has an :upward tubular extension 10, which when the valve is closed, serves as an air inlet connection from the flush pipe to the ventilator, and as an overflow conduit from the upper part of the tank. .At its upper end the tubular extension 10 is provided with a cup 1l, forming an annular water receptacle intoy whicha depending flange or rim 12 dips, as shown in Fig. 4, thereby forming a water seal between the air inlet of the ventilating device and the upper end of the tubular flush valve extension. The valve 9 and cufp 11 are formed or provided with lateral flanges or projections loosely engaging with the guides 6 and 7, for holding them in the proper relation to the flush connection 2 and the ventilator case 8.

A weighted fioat 13 and an open to-p fioat 14 are pivotally connected with opposite ends of lever members 15, which are ful# crumed at 16 on a collar 17, attached tothe guide 6. The float 14 is held in a vertical position by links- 18, pivotally connected therewith and with a depending arm Aof the collar 17, parallel with the lever members 15, and is provided in the bottom with a discharge opening which is normally closed, as shown in Fig. 5, by buoyant valve 19, or avalve carried iby a buoyant body 20, such as cork, below the float 14. The float 13 being carried by the longer arms of the lever members 15, normally preponderates and holds the open top float 14 in its elevated position, as shown in Fig. 1. The longer arnjis of the lever members are connected by links 21 with opposite sides of the flush valve 9, the lower slotted ends Of the links engaging screws or pins 22, projecting from the valve and forming lost motion connections between it and the Heats. The ventilator' case 8, as shown in Fig.` 4,`is formed with water inlet and outlet chambers 23 and 24, anair inlet passage 25, communicating with the upper end of the tubular valve extension 10', and an auxiliary water' discharge passage 26, between the outlet chamberl 24 and the air inlet passage 25. The passage. 25 communicates with a mixing tube or air entraining passage 27 formed with or attached to the case 8, and extending horizontally therefrom. At the end opposite the case 8 the tube or passage 27 connects with a water or outlet pipe 28, leading downwardly into the lower part of the tank, as

shown in Fig. 1, and also-with an air outlet pipe 29, leading laterally through the tank into a ventilating flue or duct, or directly to the atmosphere. A spray or jet nozzle 30,

threaded in or otherwise attac-hed to the casev 8 in communication with the outlet chamber 24, projects therefrom axially into the adjacent end of the mixing or air entraining tube 0r passage 27. The bore of the nozzle preferably communicates with the chamber 24 through oblique openings, as shown in Fig. 4, so as to impart a spiral or whirling movement to the vwater spray between the ,passages 25 f and 26, and? isV formed or providedl with a valve adapted,

to close the port between the chamber 24 and passage 26` when the valve 31 is opened to4 its fullest extent.

To prevent water hammer by the abrupt closing of the valve 31, a piston or retarding member 33, having a small opening 34 through it, is connected with the valve and litted in an upward extension of the case 8. which is closed by a removable cap 35.

At one, side thechamber 23 communicates with a chamber formed in an enlargement of the case 8 and provided, as shown iniFig. 4, with a strainer 37 for separating impurities from the water which might interfere with the proper operation of the ventilator nozzle 30. At one end the strainer chamber is provided with a removable cap 38, and at the other end is connected with the water supply pipe 39, which is provided, preferably within the tank, with a valve 40, as shown inFig. 2, to shut oif the water supply for the purpose of repairing the apparatus, or otherwise.

The water supply valve 31 may be opened by'a connection with a closet seat Aor by a lever or handle, such asis commonly used in connection with an ordinary flush tank. For this purpose, as Well as other purposes hereinafter described, the following devices are shown:

A weighted bell crank lever 41 is fixed on a rocker shaft or spindle 42, having bearings in the case 8 between the passages 25 and 26, and provided, as shown in Fig. 4, with a tooth or projection V43, engaging a notch in the head 32. The upwardly projecting arm of the lever 41 is adjustably connected by a spring 44 with a crank arm 45, fixed on the inner end of a stem 46, which has a bearing 47 secured in the front wall ofthe tank and which is provided at its outer end with an operating handle 48. The bearing 47 is properly positioned relative to the lever 41 and is firmly held in place at its inner end by an adjustable distance and brace rod 49` connected at one end with a stud on the case 8 and at the other end with a bracket 50, fastened with. said bearing to the inner sido of the tank wall.A As shown in Figs. `2 and 5, the handle stem 46 is provided with a stop lug 51, working in al recess in the outer end ofthe bearing 47fbetween` shoulders 52 and 53, for limiting the movement of the crank arm 45, the shoulder. 52 beinglocated'to arrest the crank arm just after the point of attachment of the spring 44therewith has passed upwardly beyond a straight line through the `point of attachment of the spring withthe. lever 41 and the axis of the handle stem. By this means the valve 31 may when desirechbe held lopen with the spring 44 under tension, as shown in Fig. 5, until it is manually released by turning the handle 48 back to its normal position, indicatedl by dotted lines in Fig..5.

rThe weighted horizontally disposed arm of the lever 41, when released, tends to close the valve 31.

Vhen the valve 3l is openedl to the fullest extent and the spring 44 is undertension, as shown in Fig. 5, the valve on the Vhead 32 closes the port between the chamber 24 and passage 26, preventing the admission of water to said passage.,V

The guide 6, which is tubular, communi- Cates at its upper end with the passage 26 and forms a continuation thereof into the lower part rof the flush tank.

To regulate the pressure ofthe water supplied to the nozzle 30, andzthe force of the spray or jet issuing from the nozzle, according to. the service pressure. which varies widely in different places, in order'to obtain the most effective and satisfactory operation of the ventilator and avoid disagreeable noises incident to its operation, a relief passage 54, provided with an adjustable `Valve 55, leads from the chamber 24 into the lower part of the tank1 .a tube 56, shown in Fig. 3, forming an extension of this passage from the valve into the lower part of the tank.

. To insure the filling of the tank andthe iushing of the toilet fixture with which'it f 'as is connected, in case the handle 48 or other connection for opening the valve 31 is immediately released and allowed to return to its initial position after the valve is opened, a latch 57 pivoted on the case 8 below the lever 41, is adapted by engagement with a downwardly projecting arm 58' of said lever, to lock and hold the valve open until it is released and allowed to close by the operation of the floats when the water rises to a certain level in the tank, as hereinafter explained. The latch 57 is disengaged from the arm 58 to release the valve 31 and permit it to close after the tank is filled, by a dog 59, pivoted to one of the lever members 15 and extending upwardly Vtherefrom through a slot in the tail end of the latch, as shown in Figs. 1 and 5. To release the latch and permit it to resume its normal operative position immediately after its tail end has been lifted by the rising of the float 13, in order to cause a repetition of the flush in case the valve 31 is manually released after a flush has taken place and while the ioat 13 is in its upper position, as shown in Fig. 5, the tail end of the catch is formed with an upward projection 60, adapted by engagement with the dog 59, to disengage the shoulder 61 thereon from the latch and permit the hooked end of the latch to immediately resume its operative position after it has been turned down into inoperative position by the rising of the float 13. 1f after this occurs, and before the lioat 13 has descended far enough to carry the shoulder 61 below the tail end of the latch, the valve 31 should be manually released, the arm 58 will be caught by the latch and the valve will be held open until the tank is again filled and another flush started by the opening of the valve 9.

In the operation 0f the apparatus, the parts being in their normal position and the tank empty, as shown in Fig. 1, if the handle 48 is turned momentarily to the left or clockwise, and immediately released, the lever 41 will be turned counterclockwise, and will open ythe valve 31, allowing water to fiow from the supply pipe 39 through the strainer 37 and inlet chamber 23 into the outlet chamber 24, whence it issues in a whirling spray or jet through the nozzle 30 into the mixing tube 27, entraini ng air therewith and drawing foul air from the bowl or fixture with which the apparatus is connected, through the .flush connection 2, flush valve 9 and its extension 10 and passage 25 in the case 8, the water issuing from the nozzle separating from the air and flowing through the pipe 28 into the tank, and the 'foul air escaping through the pipe 29.

Then the valve 31 is opened and the handle 48 is released and left free to return to its normal position, the latch 57 by engagement with the arm 58 of lever 41, holds the valve open until it is automatically released by the floats, as hereinafter explained. The' of the limit of its opening movement, the

valve on theliead 32 is not seated-and does not close the port between the chamber 24 and the passage 26, and water will flow from said chamber into and through said passage and the tubular guide 6, into the tank, thus expediting the filling of the tank.

As the water rises in the tank to the level of the buoyant body 20, it closes the valve 19, thereby preventing water from entering the float 14 through the opening in lthe bottom thereof. The water continues to rise in the tank without changing the positions of the lioats 13 and 14, until it reaches a levelindicated by the broken line -m, Figs. 1 and 5, slightly above the top of the float 14, into which it then overflows until the buoyancy of the float is reduced sufficiently to enable the weighted float 13 to overcome it. rlhe floats will then be instantly shifted from the relative positions in which Vthey are shown in Fig. 1, to those in which they are shown in Fig. 5. As the floats move at first with freedom to the extent permitted by the slots in the lower ends of the links 21, the float 14 quickly fills and as soon as the lower ends of the slots engage the pins 22, the floats have acquired sufficient momentum to promptly and positively lift the valve 9 from its seat 4, as shown in Fig. 5. llVater then flows freely through the discharge connection 2, flushing the bowl or other fixture with which it is connected, and when the water level in the tank descends below the bottom of the float 14, the valve 19 will open, permitting the water held in said iioat to .discharge therefrom and flow at a diminished rate through the notches in the flange 5 of the fitting 3, into the discharge connection and flush pipe, thereby filling the trap or water seal of the bowl or other fixture.

The shifting of the floats by the rise of the water in the tank to the positions in which they are shown in Fig. 5 not only opens the flush valve 9, but also by engagement of the'shoulder 61 on the dog 59 with the tail of the latch 57, disengages said latch from the arm 58 of the lever 41, thereby 'releasing the valve 31 and-permitting it to be closed by gravity, aided by the water pressure and the weighted arm of said lever. The closing movement of the valve 31 is however, checked by the piston or retarding member 33, suiiciently to prevent water hammer.

Immediately after it has disengaged the latch from the arm 58, the shoulder 61 on the dog 59 is thrown 'out of engagement with the tail of the latch by the engagement of the projection 60 with the side of the dog above the shoulder, the latch being thereby released and allowed to resume itsnormal operative position for engagement with the arm 58 in case the lever 41 has not been pre-v viously released by the handle 48, as hereinafter explained. When the water conf tained in the float 14 has been discharged therefrom sufliciently to enable the weighted float 13 to preponderate, the floats will be shifted back to their original positions shown in Fig. 1, thereby closing the flush valve 9 and restablishing the air connection between the ventilator and the discharge connection 2 or the flush pipe.

The cup 11 is kept filled with water overflowing into it from the mixing tube 27, and maintains a water seal between the air inlet passage 2 5 of the ventilator and the tubular extension 10 of the flush valve.

The pressure of the water supplied to the nozzle 30 is regulated by adjustment of the valve 55 to produce the most effective and satisfactory operation of the ventilator and prevent noise incident to its operation with too high pressure. The water escapingfrom the chamber 24 through the reliefvpassage 54, passes through the tube 56 into the lower part of the tank, and tends, like the water flowing through the auxiliary discharge passage 26,1'0 accelerate the filling of the tank, so that. the time of filling the tank and the intervals between flushes may be varied by the adjustment of the valve 55.

If in opening the water supply valve 31, the handle 48 is turned to its extreme position in a clockwise direction, till the sto-p lug 51 engages with the shoulder 52, as shown in Fig. 5, and is left in that position, the valve will be locked and held open indefinitely or until it is manually released by .turning the handle back toward its initial position, indicatedby dotted lines in Fig. 5. The spring 44 being strained, tends to hold the handlev 48 in its extreme vopen position with the lug 51 in contact with the shoulder 52, and in this position of the handle the arm 58 is held out of contact with the shoulder of the latch 57, as shown in Fig. 5, this clearance between the shoulder of the latch and the arm 58 being provided to permit the latch to freely resume its normal operative position to engage said arm after the latch has been released by the dog 59 when the valve 31 is Afully open. In this position of the valve 31 and lever 41, the valve on the head 32 closes the portA between the chamber 24 and auxiliary discharge passage 26.

As long as the valve 31 is locked and held open by the handle 48, the floats 13 and 14 will operate to alternately open and close the valve 9 as the water rises and descends to certain levels in the flush tank, and to repeatedly-flush the fixture with which the apparatus is connected..

During the comparatively long intervals while n the4V .tank is fillingbetween the rethe opening of the valve, until the tank has been filledy and discharged at least once.

Various modifications in the construction and arrangement of parts of the apparatus may be made without materially affecting its. mode ofV operation and without departure from the principle and scope of the invention as defined in the following claims.

I claim:

1. In ventilating and flushing apparatus' the combination of a lflush tank having a discharge connection; a ventilator having a water supply connection, a water outlet into the tank,an air inlet communicating with the discharge connection of the tank, and an air outlet connection; a valve controlling the water supply to the ventilator; and means adapted to automatically start the flush when the water rises to a certain level in the tank and to cause repetition of the flush while the water supply valve remains open.

2. In ventilating and flushing apparatus the combination of a flush tank having a discharge connection; a valve controlling said connection; a ventilator having a water `supply connection, a water outlet into the tank, an air inlet communicating with the discharge connection of the tank, and an air outlet connection; a valve controlling the water supply to the ventilator and a float adapted to alternately and lrepeatedly open and close the flush valve when the water rises and descends. to certain levels in the tank while the water lsupply valve remains open. f

3. In ventilating and flushing apparatus the combination of a flush tank having a discharge connection; a valve controlling said connection; a ventilator` having a water supply connection, a water outlet into the tank, and vair inlet and outlet connections; a valve controlling said water supply connection; Vand a float adapted to open the flush valve and to cause the water supply valve to close when the water rises to a certainlevel in the tank.

4. In ventilating and flushing apparatus the combination with a flush tank having adischarge connection, of a ventilator having a water supply connection, a water outlet into said tank, and air inlet and outlet connections; a. self-closing valve controlling said vwater supply connection; means for iso temporarily holding the water supply valve open; a retarding member connected with the water supply valve and adapted to check its closing movement; and mea-ns adapted to automatically start the flush discharge from the tank and to release and permit the Water supply `valve yto close when the Water rises to a certain level in the tank.

5. In Ventilating and flushing apparatus the combination with a flush tank having a discharge connection, of a valve controlling said connection; a ventilator having a water supply connection, a water outlet into the tank, and air inlet and outlet connections; a self-closing valve controlling said water supply connection; means for temporarily holding ,the Water supply valve open; and a float adapted to open the flush valve and to release and permit the Water supply valve to close when the Water rises to a certain level in the tank.

6. In ventilating and fiushing apparatus the combination with a flush tank having a discharge connection, of a valve controlling said connection a ventilator having a'water supply connection, a water outlet into the tank, an air inlet communicating with the discharge connection of the tank, and an air outlet connection; a valve controlling said water supply connection; and a float having a. lost motion connection with the flush valve and adapted while the Water supply valve remains open to repeatedly open the flush valve as the water rises to a certain level in the tank. v

7. In Ventilating and flushing apparatus the combination with a flush tank having a discharge connection, of a ventilator having a water supply connection, a water outlet into the tank, and an air outlet, a vertically movable tubular valve normally closing said discharge connection and forming when closed an air inlet connection therefrom to the ventilator, and a float adapted to open said valve when the water rises to a certain level in the tank.

8. In Ventilating and flushing apparatus the combination with a Hush tank having adischarge connection, of a ventilator having awater supply connection, a water outlet into the tank and an air outlet; a vertically movable tubular valve normally closing said discharge connection and forming when closed an overflow from` the tank and an air inlet from the discharge connection to the ventilator; and a loat adapted to open said valve when the water rises to a certain level in the tank.

9. In Ventilating and flushing apparatus the combination with a flush tank having a discharge connection opening from the lower part thereof, of a ventilator having a water supply connection, a water outlet into the tank and an air outlet; a vertically movable tubular valve normally closing said discharge connection and forming when closed an air inlet therefrom to the ventilator; a Water seal between the upper end of the tubular valve and the ventilator; and a float adapted to open said valve when the Wat-er rises to a certain level in the tank.

10. In Ventilating and flushing apparatus the combination of a tank having a flushing and ventilating connection, a iush valve normally closing said connection; a ventilator having a water supply connection, a Water outlet into the tank, an air inlet communicating with the iushing and ventilating connection of the tank and an air outlet connection; a self-closing valve controlling the Wat-er supply connection to the tank and ventilator; means for opening said water supply valve; means for holding said water supply valve open, and float mechanism adapted to -alternately and repeatedly open and close the flush valve as long as the water supply valve is held open and the tank is supplied with water.

11. In Ventilating and flushing apparatus the combination with a flush tank having a discharge connection, of a ventilator having a Water supply connection, a water Voutlet into the tank, and air inlet and outlet connections; a valve controlling the supply of water tothe ventilator; an auxiliary water discharge passage leading Yfrom the ventilator into the tank; a valve connected with the Water supply valve and adapted lwhen the latter is opened to the fullest extentv to close the inlet to the auxiliary passage and when the water supply valve is partiallyopen to admit water to said passage;'means for operating said valves at will; and means for automatically starting Vthe discharge vof water from the tank while the water supply valve is open and when the water rises to a cerain level in the tank.

l2. In Ventilating and flushing apparatus the combination with a flush tank having a discharge connection opening from the lower part thereof, a ventilator comprising water inlet and outlet chambers and having a Water supply connection with the inlet chamber, an air entraining passage, a nozzle directed from the outlet chamber into said passage, air inlet and outlet connections with opposite ends of the passage, a water outlet from said passage into the tank, and a water supply valve controlling communication between the inlet and outlet chambers; a relief passage leading from the outlet lchamber into the tankand provided with regulating means; means for operating the water supply valve; and means for automatically starting the discharge of water from the tank while the water supply valve is open and when the water rises to a certain level in the tank.

13. In Ventilating and flushing apparatus the combination with a flush tank having a dischargeconnectionopening from the lower part thereof, of a ventilator having a water supply connection, a water outlet/into the tank, air inlet and outlet connections, and a valve'controlling the water supply; a lever' forV opening said valve, means for operating said Vlever to open the valve at will, a latch for holding the valve open; a float adapted when the water in the tank rises to a certain level to irst'disengage the latch and allow the'valve tofcloseya'nd then to release the latch; and lnieans'fadapted to automatically start lthe flow of water from the tank through its dischargeconnection when the water rises to a certain level inthe tank.l

14. In ven'tilatifng 'and 'flushing apparatus the.combir'iatioi1l with a flush tank having a disharge'connecti'on opening from the lower part thereof; a ventilator having a water supply connection', a ywater:'outlet into the tank, air v inlet and' outlet connections, and a valve controlling the water 'supply connection, a weightedlever forzopening' and closingsaidvalve, a'ri operating lever connected by apspring withthe'weighted lever, a stop for limiting the opening movement of; the operating lever in positionto hold the valve fully fopen; and,r therconnectin'g spring under tensioniand meansfor repeatedly Starting theldischarge: vof 'water lfrom the Itank when they water rises to ac'ertfain level therein, and therebI )causing Ithe tankto be alternately filled and discharged whilethewater supply remz'i'in's open.

l5. vIn4ventll"atinjgE fand"Vilishing apparatus the combination of'a flush 'tank havinga discharge-connection; a flush valve normally closing saidd discharge connection; a ven'- tilator having a water supply connection, a water outlet into the tank and air inlet and outlet connections; a valve controlling said water supply connection; means for holding said valve open; Van open top float having a discharge opening in the lower part thereof and provided with a normally open buoyant valve adapted to close'said" opening when water rises in the tank;V and a preponderant float connected with the open top vfloat and coperating therewith to alternately open and close said flush valve'as long as the Water'supply valve remains open.

16. In: Ventilating and flushng apparatus the combination of a flush tank having discharge connection;v a liush valve'nornrally Y closing saiddischarge connection; a ventilator having a water supply connection, a water outlet into the tank, and Aair inlet and outlet connections; a self-cldsingvalvevcontrolling said water ksupply connection; means for opening said valve at Will'and for holding it openindefinitcly; means for ltemporarilyholding said valve open; and means adapted to'- alternately openand close the iushvalvea'slwater rises andlfalls to certain levels'in vthe'tank while'the water supply valve remains open' and'to "automatically release said temporary holding means and permit said water supply :valve to'close when the water'rises to acertaiii level in the tank after the other Yholding means has been released. n Y

Mln witness whereof I-hereto afiifirmysig nature.l r i .4

f CHARLES 'El l"S'I-ADA'LL. 

